EurekAlert -- FD, a common non-organic disease in the world, greatly affects the patient's quality of life. However, treatment of FD is still controversial and no single therapy is uniformly effective, due, in part, to absence of a reliable evaluation instrument. The Nepean Dyspepsia Index (NDI), measuring both symptom scores and impairment of the dyspepsia-specific health-related quality of life in FD patients, has been designed to diagnose FD and translated into several languages. Moreover, its utility has been proved to be validated by researches in western countries. However, DI has not been translated and validated in China./p>
